Improvement in lock-hinges for blinds and shutters



A 8. PARKER. Lock-Hingesfur Blinds and Shutters No, 163,400PatentedMay18,l875.

THE GRAPHIC CO.PHOT0 -L|TH.39 k4! PARK PLACE,N.Y

UNITED STATES ATENT Prion.

ABIJAH S. PARKER, OF BINGHAMTON, NEW YORK, ASSIGNOR TO THE PARKERMANUFACTURING COMPANY, OF SAME PLACE.

IMPROVEMENT IN LOCK-HINGES FOR BLINDS AND SHUTTERS.

Specification forming part of Letters Patent No. 163,400, dated May 18,1875; application filed December 7, 1874.

To all whom it may concern:

Be it known that I, ABIJAH S. PARKER, of Binghamton, in the county ofBroome and State of New York, have invented a new and Improved Hinge andFastening for Blinds and Shutters, of which the following is aspecitication:

This invention relates to anovel construction of the hinge with notchesin a circular flange provided on one leaf, and a lever-catch pivoted tothe other leaf, whereby the hinge is made self-locking when the blind orshutter is closed, and self-fastening to hold the blind or shuttersecurely when wide open, and provision is afforded for securing theblind partly open in various positions for shade and ventilation; and itconsists in forming the catch of wedge shape, so as to draw the blindtoward the frame, to prevent its rattling.

Figure l is an elevation, showing the blind or shutter wide open, theedges being presented to view and the parts of the hinge in theself-fastening position. Fig. 2 is a plan view of that leaf of the hingewhich is attached to the shutter. Fig. 3 is an inverted plan of thesame. Fig. 4: is a top view of that leaf of the hinge which is attachedto the window-casing or other part of the building. Fig. 5 is a sideview of the lever-catch. Fig. 6 is an edge view of the same.

Similar letters of reference indicate corresponding parts in the severalfigures.

The leaf of the hinge which is attached to the window-casing A or otherpart of the building is composed of a broad vertical flange, B, which issecured by screws to the outer side of A, and to which are cast orsecured a horizontal arm, (3, and fiat vertical lug, D, the said armhaving a hole, a, provided in it for the reception of the pintle c ofthe hinge, and the said lug having pivoted to it by a pin, b, thelever-catch E. The lug D is intended to be let flush into the side faceof A. The arm 0 has a notch, j, provided in it, for the catch to passthrough.

- The other leaf of the hinge, which is attached to the blind or shutterGr, consists of a broad flange, F, which is secured by screws to theouter side of G, and to which is cast or secured a horizontal arm, H, onthe under side of which is formed or firmly secured the pintle c. Theend of this arm is made of circular form, making a circular flange orhead, I, to the pintlc c,-concentric therewith. In this head there aretwo radial notches, d e, occupying opposite positions, at right anglesto the face of the flange F, the notch (1 extending vertically throughthe head I, and the notch 6 extending only partly through from the underside. Between these notches are other radial notches,ff, which are openat the edges and top of the head I, but partly closed at the bottom, asshown at 8 8, so that the lever-catch, entering them at the top, cannotdrop through them, but rests on the parts 8 8.

The lever-catch E is made with a tooth, g, at one end, and a tooth, h,on the other side of its center, on which side the lever is prolonged toform a handle or finger-piece, t, by which to manipulate it.

When the blind or shutter is closed and the lever-catch is allowed toswing free, the finger-piece i falls to the position shown in bold.outline in Fig. 1, owing to its being heavier than the tooth g, andthrows the said tooth up, through the notch j of the arm 0, into thenotch c of the pintle-head I, and so forms a self-lock to the blind orshutter,which can be unlocked by simply raising the fingerpiece 6, whichis only accessible from the inopen by the catch being turned up, asshown in dotted outline in Fig. 1, to bring the tooth h into one of thenotches f f.

When the blind is closed or wide open and locked by the tooth g of thecatch, the catch the notch e, for the purpose of drawing the issteadied, and strain of the pin 1) is preventblind closely into place inthe act of fastened by the reception of the said tooth in the ing, asspecified.

notch j in the arm 0. What I claim as my invention, and desireWitnesses:

to secure by Letters Patent, is-- F. A. DURKEE, The beveled catch g, incombination with P. A. HOPKINS.

ABIJAH S. PARKER.

